Kennametal 4046470 Corner Chamfer End Mill 0.3937in 4 Flute

Product Description

The KENNAMETAL 4046470 is a solid carbide corner chamfer end mill designed for precision milling operations where a controlled chamfer edge is required at the corner of a workpiece. Built to the F4BJ.C series specification, it features a 10 mm (0.3937 inches) cutting diameter with a 22 mm (0.8661 inches) length of cut and a four-flute, fine-pitch geometry. The AlTiN coating provides elevated heat and wear resistance, making this tool well-suited for demanding ferrous and hardened material applications. Centercutting capability allows plunge entry. Overall length is 72 mm with a 10 mm shank diameter and a 20-degree maximum helix angle.

This end mill is used in vertical and horizontal CNC milling centers for chamfering, deburring, and combination profiling operations on ferrous metals, alloy steels, and similar materials. The corner chamfer geometry produces a precise angled edge break rather than a sharp corner radius, which is common in die-and-mold, aerospace component, and precision machined part production. The fine pitch and solid carbide construction make it appropriate for finishing and semi-finishing passes where edge quality and dimensional accuracy are priorities.

Key Features

• Corner chamfer end type for precise angled edge breaks on finished workpieces
• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating for high-temperature performance and extended tool life
• Centercutting design allows direct plunge milling
• Four-flute fine-pitch geometry for smooth surface finish
• 0.50 mm chamfer width for consistent, repeatable edge geometry

Compatibility

Designed as an OEM-specification solid carbide corner chamfer end mill for use in standard CNC milling tool holders accepting a 10 mm straight shank.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Use a properly sized collet or end mill holder to achieve the manufacturer-recommended runout tolerance. Verify tool overhang, cutting parameters, and coolant strategy against the applicable speeds-and-feeds data for the workpiece material before commencing the cut.